<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>tabel的td属性</title>
</head>
<body>
    <table align="center" border="1" width="500"  bgcolor="yellow">
        <tr>
            <td width="300" align="center">1</td>
            <td height="100">2</td>
            <td bgcolor="red" valign="bottom">3</td>
        </tr>
        <tr>
            <td>4</td>
            <td>5</td>
            <td>6</td>
        </tr>
    </table>
</body>
</html>